αET and αMT are serotonin, norepinephrine, and dopamine releasing agents which were formerly used as antidepressants in Russia. They are now encountered solely as recreational drugs similarly to the MDxx series.

↑Driessen B, Reimann W (January 1992). Interaction of the central analgesic, tramadol, with the uptake and release of 5-hydroxytryptamine in the rat brain in vitro. British Journal of Pharmacology105 (1): 147–51.